linux-kernel - Re: [PATCH] x86/tracing: introduce enter/exit tracepoint pairs for page faults

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Message-ID: <5fd0a429-95b8-4ed6-9e2a-83887b40bf54@cs.wisc.edu>
Date: Mon, 14 Apr 2025 18:48:32 -0500
From: Junxuan Liao <ljx@...wisc.edu>
To: Steven Rostedt <rostedt@...dmis.org>, Dave Hansen <dave.hansen@...el.com>
Cc: linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: Re: [PATCH] x86/tracing: introduce enter/exit tracepoint pairs for
 page faults

>>> I think it might be good to add a field to the tracepoints to indicate
>>> whether it's in user space or not.  
>>
>> seems highly superior to having two sets of tracepoints and static keys.
> 
> I agree.

I'll implement this and delete the extra stuff then.

Thanks,
Junxuan